Re: fuel to the carburetor

Posted by HH56 On 2010/12/8 16:18:47

You should not need an electric pump. I have both but use mostly the mechanical pump on my Carib and it pumps just fine. Any chance the pump was not rebuilt properly and one of the valves is in backward or the diaphragm was stretched tight when the two halves were bolted together so it can't flex properly and deliver. The pressure out depends a lot on the spring inside pump pushing against the diaphragm when full. Is the arm on the correct side of the cam so it is operating the pump properly.

I did have the problem with the ceramic element on mine. You could blow air thru but the varnish had clogged the element so badly that gas couldn't deliver in enough quantity to keeps carbs filled.